Electric signal device



Nov. 11, 1924. 1,515,147

, `J. W. CLARK ,ELECTRBC S IGNAL DEVICEA Filed Apri; 27 1920 l 45 Z5' 47d i @3313 we www o latented Nov. ll, 1924.

FFME.

JAY WARREN CLARK, OF NEW YORK, N. Y.

ELECTRIC SIGNAL DEVICE.

Application led April 27, 1920v To all rtv/wm it 'may concern.'

Be it known that I, JAY WARREN CLARK, a citizen of the United States, and residing at New York, in the county of Bronx and State of New York, haveinvented certain new and useful Improvements in Electric Signal Devices, of which the following is a specification such as will enable those skilled .in the art to which it appertains to make and use the same. l

This invention relates to electric signal devices and particularly to devices of this class which are adapted to operate electric bells, buzzers, annunciators, lamps, switches and various other instruments or electrical appliances, and the object of the invention is to provide a device of the class described which involves an electro-magnet or magnets and an armature actuated by said magnet or magnets, the movement of said armature being governed by the direction of the How of the current through said magnet or magnets; a further object being to provide means for controlling and regulating the iiow of the current through the magnet or magnets; a still further object being to provide adjustable means cooperating with the armature and in the electric circuit to the magnet or magnets for controlling the movement of said armature; and with these and other objects in view the invention consists ina device of the class and for the purpose specitied which is simple in construction and operation and eicient in use, and which is constructed and operated as hereinafter described and claimed.

The invention is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which Fig. 1 is a diagrammatic plan view of my improved electrical device and illustrating one use thereof;

F ig. 2 a partial section on the line 2 2 of F i g. 1, with part of the construction omitted; and,

Fig. 3 a partial section 'on the line 3-3 of Fig, 1 and on an enlarged scale.

In Figs. 1 and 2 of the drawing I have shown at 5 a permanent magnet which comprises, in the form of construction shown, a base portion 6 at the ends of which are upwardly directed ears 7 and 8. Secured to the ear 8 is a yoke-shaped magnet member Serial N0. 376,941.

9 preferably composed of soft iron. Mounted in the end portions 10 of the yoke-shaped magnet member 9 are electro-magnets 11 and 12, the cores 13 of which project into close proximity at the adjacent faces of said electro-magnets 11 and 12.

Secured to the ear 7 at the other end of the magnet 5 is a U-shaped hinge member 14 in which is pivoted, as shownat 15, an armature arm 16 which extends longitudinally of the base 6 of the magnet 5, and the.

free end portion 17 of which is located between the projecting ends of the cores v13 of the electro-magnets 11 and 12. The free end of the armature arm 1.6 carries, in the form of construction shown, a hammer rod 18, the end of which is provided with a knob 19 which is adapted to strike a bell or gong 2() mounted on a suitable support 21, but it will be understood that the armature arm may be mounted in connection with any suitable mechanism which it is designed to operate.

Secured to one side of the armature arm 16 adjacent to the pivoted end thereof are two spring and electrical conducting members 22 and 23 and .to the other side. of said armature arm is secured another spring member 24. Mounted at one side of the armature arm 16 are two supports 25 and 26 in which are adjustably mounted contact points 27 and 28 respectively which, in the form of construction shown, consist of screws. Mounted at the other side of the armature arm 16 is another support 29 in which is adjustably mounted a screw 30. Itwill be seen on a consideration of Fig. 1 of the drawing that the contact point 27 is adapted to operate in connection with the spring member 22, while the contact point 28 is adapted to operate in connection with the spring member 23, the screw 30 in connection with the spring member- 24.

The above described construction completes the various mechanical parts of the device, and for the purpose of illustrating the use of the invention and the-electric circuit to the various parts above set out, l have shown in Fig. 1 of the 'drawing at 31 and 32 two circuit wires which are connected with a source of electrical supply having a direct current and, in practice, I provide two switch devices 33 and 84 which are adapted to open and close both sides of the circuit through the wires 31 and 32 to control the flow of the current into and through the de vice. The switch devices 33 and 34 are both of the same. general construction and each consist of a top pair of spring contact devices 35 and 36, and ar bottom pair ofspring contact devices 37 and 38, the separate pair ot contact devices being separatedtronieach other by a strip of insulatingmaterial 39, as is clearly illustrated, inFig. ,3 of the drawings.

, ln'practice, the main circuit Wire 31 is placed in circuit with the4 contact 33 oi the svvitch device 33vthrough a Wire 4() and in circuit vvith the ycontact 36 of the switch.

device 34 through a Wire 41, While the main circuit Wire 32 is placed in circuit with the contact ,360i thevsivitch device 33 through a' Wire .and infcircuit with the contact 38 ot the switch. device through a wire 43. My improvedsignal device is provided with twovbinding posts 44 and 45xvith which are connected.respectively circuit Wires 46 and 47. The Wire 46 is placedV in circuit with the contact 35 ot thesivitch device 33 through aavire43 and finY .circuit with the contact 35 of; they switch vdevice 34. through a Wire 49 While. theV circuit Wire 47 -is placed in circuit with the contact 37 ot the switch device 33 through a Wire 50 and With the contact. 37 ot the switchdevice 34 through a '\vire 51.`^` fl ythexabove described Wiring` places both pair of contacts ini each of the switch devices 33 and 34, in the main Circuit Wires 31 and 32 and the circuit-fivires 46 and47,.\vhich connects with lthe ,binding posts 44 and-45 and, in theA construction shown, a circuit ivire 52 is connected With the binding post 44 and with the support 26 of the contact point 2S, and .a circuitwire53 is connected With the bindingposti and with the electro-magnet 12. A branch. Wire 54 is connected with the Wire 53 andivith the support 25 of the contact point 27.. Another circuit Wire 55 is connected With the electromagnet 12 and With the electro-magnet 11 to place the same. in a common circuit and another circuit Wire 56'is connected with the electro-magnet 11 and-With the pivoted end portion of the armature arm-16 as shown at 57. The above described construction completes the electric circuit-or Wiring` through the signal device or `the various parts thereof, and the use ot my improvement ivill be readily understoodfromthe foregoing description when t-alrenin.connection with the accompanying drawing and the following statement. y

lilith my improved'electric signal device l provide anarmature armfwhicah is capable ot movement inopposite directions and is capable ot performingxany tivo .of the following operations by adjusting,` the contact points 27, and screw 30, and for the purpose ot this description the magnet 11 will be regarded as the. right hand side oi the device and the magnet 12 as the lett hand side thereof. ln one adjustment of the device the armature arm may move to the right or move to the left; in another adjustment the armature arm may vibrate to the right or vibrate to the lett; in another adjustment the armature arm may relay to the right or vibrate to rthe lett; and in still another adfustment the armature arm will vibrate to the right or relayto the left.

yln order to fully understand the foregoing,` the following is submitted. The upwardly directed ear 6 of the permanent magnet will be the S pole in sucn magnet7 While the ear ,7 will be the N pole thereof; it will theretore be apparent that the magnetic yoke 9 `vill have S polarity and the armature becomes a magnetic member having- S polaripy at its pivoted end and N polarity at its :tree endg and the core pieces 13 of the magnets 11 and 12 will become S polarity due to their connection with the magnetic memberQ. l i t. r

The primary principle upon which the inventionv is based consists in the changing oit the magnetic polarity of the electro-magnets 11 and 12 by controlling the direction of the current passed therethrough on a tvvo vWire circ-uit in such manner that the armature arm is caused to move toward either Yone ot said electro-magnets, and by means of the adjustable contact points 27, 23 and scrcv.v 30 .l maj/'control the movement of said armature in such manner as to cause the same to vibrate towardor relay to either ot said. electro-magnets. `The dev-ice is operated as a buzzer in the vibratory action of the armature arm to the lett7 and this operation is produced by adjusting'v the screw `30 so as to increase the tension ot the spring member 24 and to -hold the spring' member 23 in eugagement With the Contact point 28 and the contact point 27 is adjustedso as to disengage the sametrom the spring member i as shown. in Fig. 1 of the drawing. Ii the labove adjustment has been made the switch device 34is operatcdyivhirh operation causes the current to tloiv into the g nal device throughithe Wires 49-46 to the binding; post 44 through the Wire et t .e contact point 23 tlirough the spring member 23, armature arm 16 and `Wire 56 to the clertro-n'iagncts 11 and 12 and from the elect, magnet 12 through the wire to the bindin A7.

l post 45 and out through the ivire The above operation ot passing; the cureut through the signal device Will by reason ci the direction ot the Winding onfthe electromagnets cause the electro-magnet 11.y which has been assumed to be Si polarity near the armatu to become N polarity n.err said armaturen aud would also cause. the electromagnet 12 to increase` its magnetism with its polarity unchanged thus the armature arm 16 will be repulsed by the magnet 11-and atto flow through the magnets 1l and 12 and the magnetic field returns to its normal state and the armature arm will again assume its original position, and this causes the spring 22 to become separated trom the contact point 27 and the short-circuit is thus removed and if the switch device 34: is held in an operative position the current will again flow through the magnets 1 1 and 12 and the above described operation repeated, and the action ot' the armature arm, or the hammer rod 18 connected therewith, will produce a buzzing sound.

The signal device is operated a bell in the vibratory action ot the armature arm to the right and this result is accomplished by operating the switch device 33 to cause the current to enter the sounding 'device through the binding post -15 and thus through the wire 53, electro-magnets `12 and 11, wire 56 and armature arm 16 and through the spring k23 and contact point 2S and out through the binding post ll through the wire 52. A direc-t current passed through the electro-magnets in the direction above set out will cause the magnet 11, which is assumed to be of S polarity near the armature arm, to increase its magnetism with the polarity unchanged, and

1the magnet l2 will be changed to N polarity near the armature arm and the action ot said magnets will cause the armature arm to be attracted by the magnet 11 and repulsed by the magnet 12 or, in other words, the armature arm 16 will be moved tothe right.

In the above described operation the contact points 27 and 28 and screw 30 are in the same adjusted position as in the vibratory action ot the armature arm to the' left, as hereinbet'ore described, but when the armature arm is swung to the right the spring member 23 is disengaged from the Contact point 28 and the circuit is open or broken thus causing the current to cease to flow through the magnets 12 and 1l, and the magnetic field returns to its normal state ant the armature ,is brought back to its original position. It the switch device 33 is held in operation, the electric circuit,

above described, will again be closed and the' above operation again repeated to vibrate the arm 16 to the right, which operation will cause the head 19 to strike the bell or gong 20.

From the foregoing description of the vibratory action ot the armature arm to the lett and to the right, it will be apparent that it is necessary to employ means tor reversing the direction of the current to pass through the signal device, and this direction governs themovement ot said armature arm.

When it is desired to operate the device` :tor the purpose ot' moving the armature arm toy the lett and to the right, the contact point 28 1s adjusted so as to constantly bear on or be held in engagement with the spring 23 regardlessot the position of the arma-` ture arm and the contact point 27 is adjusted `so that the spring 22 cannot engage the same in any position of the armature arm 16. lV ith the parts adjusted it will be apparent that the circuit is always closed through both of the electro-magnets 11 and 12 and the direction of moving the armaturearm 16 will be governed byy the switch devices and 311-, that is to say, it' the switch device 33 is operated the armature arm will move to the right, and it' the switch device 34 is operated said armature arm will move to the lett. The armature armwillv remain in engagement with either electro-magnet as long as the switch device is held in an operative position,

In operating the signal device to move the armature arm` to the left and vibrating the same tok the right, the contact point vis adjusted so that the spring member 22 cannot come in engagement with said contact point when the armature arm is moved to the left, and the contact point 28 is adjusted so that it will be iny contact with the spring member 23 when the armature arm is in its normal position but so that thespring membeiI 23 will move out ot engagement with the contact point 28 when the armature arm is swungto the right. In this adjustment and when the current entersthe instrument in the manner hereinbc'fore set out to attract the armature arm. to theilett there is no means provided to al er the circuit and the armature arm should remain in such position until the circuit is opened through `the switch device 34., lvhen the current-enters the instrument in the opposite direction and the armature arm is moved to the right the circuit is opened through the contact point 28 and spring 23-and the armature will return to its original position and the cir'- cuit will again be closed, and the abovey op eration repeated to vibrate the armature arm as long as the circuit is closed through the switch device 33. Y

ln operating the signal device to vibrate the armature arm to the lett and to move 'the same to the right, the contact point 28'is adjusted so that it will always be in engagement with the lspring 23 and the contact point 27 adjusted into the positiony shown in F ig. 1 and so that the spring member- 22 will engage said contact point when the armature arm 1s moved to the lett. ln this adjust-ment and when the current enters the ifi() instrument in such direction as to .attract the armature arm to the right, said arm will remain in such position as long as the circuit is closed through the switch device 33. `When the current enters the instrument lin the opposite direction so as to attract the armature arm to the left, the springQQ is broughtinto engagement With the contact point Q7 and the instrument is short-circuited and the armature arm will return to its normal position and the circuit will again be completed to produce a vibratory movement oit said arm to the left as long as the circuit is closed through the switch device From the 'foregoing description it .Will be understood that my improved device may be used for various purposes, as `tor example', the operation of bells, buzzers and other alarm devices, and may also be `used for the purpose of operating annunciators, lamps, switches and various other and Asimilar devices; and While I have shown and described specitic forms ot switch devices 33 and 34, it'vvill -be understood that any means may. be provided for opening and closing both sides of the circuit to the electro-magnets 11 and 12, and various other changes in and modifications of the construction herein shown and described may be made, Within the scope of the appended claims, without departing 'from the spirit of my invention orisacriicing its advantages. i

Having fully described my invention, What claim as new and desire to secure by Letters Patent, ris :-d

`1. A signal device of the class described comprising a permanent magnet, a polarized armature arm pivotally mounted in connection with one lportion of said magnetl and extending longitudinally thereof, electro-magnets connected with the other end portion of said permanent magnet and at the opposite sides of the tree end portions o't said armature arm and in lconnection with which said armature arm is adapted to operate, said electro-magnets and armature arm being in a common electric circuit, and adjustable means in kjuxtaposition to and cooperating with said armature arm 'tor controlling and regulating the movement thereof.

2. .e signal device o'l' the class described comprising a permanent magnet, a polarized armature arm pivotally mounted iu connection with one end portion of said magnet and extending longitiulinally thereof, electro-magnets connected With the other end portion of said permanent magnet and on tbe opposite sides of the free end portion ot said armature arm and in connection with Which said armature arm is adapted to operate, said electro-magnets and armaturebeing in a common electric circuit, tensional contact members -o'n said portion of said `permanent magnet and ou the opposite sides of the tree end portion ot' said armature arm vand in connection with which ysaid armature `arm 1s adapted `to operate, said electro-magnets and armature being in a common electric circuit, teusionafl contact members on said armature arm, adjustable contact devices -in circuit with said electro-magnets adapted to cooperate With said tensionall conducting members for controlling and regulating the movement of said armature, and means for controlling the circuit to said electro-magnets, armature arm and contact devices.

4. A signal device of the class described comprising a permanent magnet, a polarized armature arm pivotally mounted in connection with one end portion ot sai-.il magnet and extending longitudinally thereof, electro-magnets connected with the other end portion of said permanent magnet and on the opposite sides of the free end portion of said armature arm and in connection with which said armature arm is adapted to operate, said electro-magnets and armature being in a common electric circuit, tensional contact members on said armature arm, adjustable Contact devices in circuit with said electro-magnets adapted to cooperate with said tensional conducting members for controlling and regulating the movement of said armature, and adjustable means cooperating with said armature arm Which in combination with said adjustable contact devices are adapted to control and regulate the movement oiC said armature arm.

An electric signa-l device of the class described comprising tivo electro-magnets placed in an electric circuit, a polarized armature arm mounted between said magnets and in circuit therewith, and meain; involving three adjustable devices cooperating with said armature and tivo of which are in said circuit for regulating the movement of said armature and for governing the character of' the movement imparted to said arm-` 6. A signal device of the class described comprising tvvo electro-magnets in a common electric circuit, a polarized armature freely disposed between and adapted to vcooperate Wi'th said magnets, three tensional devices carried by said armature, and; une@ lll() lll) l ill) adjustable contact` devices in juxtapositiox'l to and adapted to cooperate withv the separate tensional devices of said arma-ture and two of which are in said circuit to control and regulate the movement of said armature.

7. An electric signa-l device of the class described comprising a substantially T- shaped permanent magnet, two electromagnets mounted in connection with the cross head portion of the permanent magnet and in a common electric circuit, an armature arm pivotally mounted in connection with said permanent magnet and freely disposed between the adjacent ends of the electro-magnets, and means on said armature arm and cooperating therewith and in circuit with said electro-magnets for controlling and regulating the movement imparted to said armature arm.

8. An electric signal device of the class described comprising a substantially T- shaped permanent magnet, two electromagnets mounted in connection with the cross head portion of thepermanent magnet and in a common electric circuit, an armature arm pivotally mounted in connection With said permanent magnet and freely disposed between the adjacent ends of the electro-magnets, mea-ns on said armature arm and cooperating therewith and in circuit with said electro-magnets for controlling and regulating the movement imparted to said armature arm, said means involving a plurality of telnsional devices on said armature arm, and adjustable contact devices cooperating with said tensional devices.

In testimony thatI claim the foregoing as my invention I have signed my name in presence of the subscribing witnesses this 24th day of April 1920.

f JAY WARREN CLARK.

Witnesses:

C. E. MULREANY, H. E. THOMPSON. 

